NFPA 79 2021

is comprised completely of PVC and no longer contains nylon. The removal of nylon provides for easier strip ability, quicker terminations, and greater flexibility. Cable dimensions remain unchanged from previous PVC/NylonMTWdesign allowing the user to remainwith their existing terminationmethods and hardware. The ÖLFLEX ® 190/190CY provided by LAPP is a very unique UL Listed Tray cable solution that is not available from any other cable manufacturer in the world. Cable product innovations, ÖLFLEX ® VFD 2XL, VFD 2XL with Signal, and VFD 2XL SYMMETRICAL feature reduced diameter designs when compared to traditional 2000volt Thermoset insulatedTCratedcables. Specifically all these cables are tri-rated for 600/1000/2000 Volt use and maintain the same dimensions as 600 Volt Thermoset insulated TC cables. This exceptional insulation provides cables that are lighter in weight, easier to handle, and save space in tray installations while meeting the demanding voltage and power requirements for 2000 volt VFD/Servo systems. In addition, these cables are able to support 3x times the voltage withstand of 600 volt TC cables. As cable dimensions remain unchanged from 600 Volt TC-ER rated cables the end user may remain with their existing connectorization and termination methods. The ÖLFLEX ® VFD 2XL, VFD 2XL with Signal and VFD 2XL SYMMETRICAL provide cable solutions exclusive to LAPP that are not available from any other worldwide cable manufacturer. LAPP innovative cable designs ÖLFLEX ® SERVO 7TCE and SERVO FD 7TCE address the need for precision control concerning stationary and continuous flexing VFD/Servo applications. As each cable is also tray rated (TC), providing multi-versatile usage for the industrial platform and infrastructure. The ÖLFLEX SERVO 7TCE and SERVO FD 7TCE were created to offer users a reduction in diameter versus other UL Listed thermoset insulated Tray cable types. These cables maintain the –ER rating for Exposed Run installations. These requirements were being promoted to support servo system installations from manufacturers such as Allen-Bradley (Rockwell Automation), Siemens, and other producers to provide the “one

Cable” solution for both the industrial platform and infrastructure. As dimensions are similar to that of standard type generic PVC/ Nylon cables no new retrofitting would be required concerning connectors, terminals, etc. The TC-ER rating ensures compliance with either NEC Article 336 or NFPA 79 requirements as one cable can be used to accommodate either installation. The ÖLFLEX ® SERVO 7TCE and SERVO FD 7TCE provide very unique tray cable solutions that are not available globally from any other cable manufacturer. CONCLUSION In summary, it is of utmost importance to give as much close attention to the cables that will be used in equipment and machines as all other costs associated with an installation. Ignoring cable- specific requirements or consider them unimportant can be a very costly mistake and can ultimately result in unnecessary down time, or a potentially hazardous or life-threatening situation. With regard to industrial machine manufacturing and installation, the NFPA has taken a major step in addressing these issues by publishing its latest document, the 2021 edition of NFPA 79. While AWM remains as a permissible wiring method in the NFPA 79 2021, manufacturers, installers, contractors, etc., must continue to remain vigilant to restrict its usage to the industrial platform. As AWM is not a recognized method of wiring per the NEC, it is prohibited for use anywhere in the industrial infrastructure, unless it has been dual rated with an appropriate UL listing (TC, PLTC, ITC, etc.). It is of utmost importance to always remember that upon an inspection any cabling used is subject to interpretation by the Authority Having Jurisdiction (AHJ). Only the AHJ has the experience and proper qualifications to provide final determination concerning cabling installation requirements. While LAPP USA can offer an opinion concerning interpretation of certain aspects of National Electrical Code (NEC) articles or NFPA 79 regulations, we are prohibited from providing any type of final determination.

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